Dibenzo-p-dioxin,50 µg/mL,n-nonane,1mL,

Sulfur Calibr. Mix. Dibenzothiophene in White oil (20 cSt)Unit: 10mL screw-capped bottle Matrix White oil White Oil Concentration Isooctane Toluene 3 cSt

2-Nitrobenzaldehyde semicarbazone, 25mg

Carbamazepine